Search for the decay <math display="inline"><msup><mi>B</mi><mn>0</mn></msup><mo stretchy="false">→</mo><msup><mi>K</mi><mrow><mo>*</mo><mn>0</mn></mrow></msup><msup><mi>τ</mi><mo>+</mo></msup><msup><mi>τ</mi><mo>-</mo></msup></math> at the Belle experiment
- Dong, T.V
- Luo, T
- Adachi, I
- Aihara, H
- Asner, D.M
- Atmacan, H
- Aulchenko, V
- Aushev, T
- Ayad, R
- Babu, V
- Bahinipati, S
- Behera, P
- Belous, K
- Bernlochner, F
- Bessner, M
- Bhuyan, B
- Bilka, T
- Biswal, J
- Bobrov, A
- Bozek, A
- Bračko, M
- Branchini, P
- Browder, T.E
- Budano, A
- Campajola, M
- Červenkov, D
- Chang, M.-C
- Chang, P
- Chen, A
- Cheon, B.G
- Chilikin, K
- Cho, H.E
- Cho, K
- Cho, S.-J
- Choi, S.-K
- Choi, Y
- Choudhury, S
- Cinabro, D
- Cunliffe, S
- Czank, T
- Das, S
- de Nardo, G
- de Pietro, G
- Dhamija, R
- Di Capua, F
- Dingfelder, J
- Doležal, Z
- Dubey, S
- Epifanov, D
- Ferber, T
- Ferlewicz, D
- Fulsom, B.G
- Garg, R
- Gaur, V
- Gabyshev, N
- Garmash, A
- Giri, A
- Goldenzweig, P
- Graziani, E
- Gu, T
- Gudkova, K
- Hara, T
- Hartbrich, O
- Hayasaka, K
- Hernandez Villanueva, M
- Hou, W.-S
- Hsu, C.-L
- Inami, K
- Inguglia, G
- Ishikawa, A
- Itoh, R
- Iwasaki, M
- Jacobs, W.W
- Jang, E.-J
- Jia, S
- Jin, Y
- Joo, K.K
- Kahn, J
- Kang, K.H
- Kichimi, H
- Kiesling, C
- Kim, C.H
- Kim, D.Y
- Kim, S.H
- Kim, Y.-K
- Kimmel, T.D
- Kodyš, P
- Konno, T
- Korobov, A
- Korpar, S
- Kovalenko, E
- Križan, P
- Kroeger, R
- Krokovny, P
- Kuhr, T
- Kulasiri, R
- Kumar, M
- Kumar, R
- Kumara, K
- Kuzmin, A
- Kwon, Y.-J
- Laurenza, M
- Lee, S.C
- Li, J
- Li, L.K
- Li, Y.B
- Li Gioi, L
- Libby, J
- Lieret, K
- Liventsev, D
- Macqueen, C
- Masuda, M
- Matsuda, T
- Matvienko, D
- Merola, M
- Metzner, F
- Miyabayashi, K
- Mizuk, R
- Mohanty, G.B
- Nakao, M
- Natochii, A
- Nayak, L
- Niiyama, M
- Nisar, N.K
- Nishida, S
- Nishimura, K
- Ogawa, S
- Ono, H
- Onuki, Y
- Oskin, P
- Pakhlov, P
- Pakhlova, G
- Pardi, S
- Park, H
- Park, S.-H
- Patra, S
- Paul, S
- Pedlar, T.K
- Pestotnik, R
- Piilonen, L.E
- Podobnik, T
- Popov, V
- Prencipe, E
- Prim, M.T
- Rostomyan, A
- Rout, N
- Russo, G
- Sahoo, D
- Sandilya, S
- Sangal, A
- Santelj, L
- Sanuki, T
- Savinov, V
- Schnell, G
- Schueler, J
- Schwanda, C
- Seino, Y
- Senyo, K
- Sevior, M.E
- Shapkin, M
- Sharma, C
- Shiu, J.-G
- Simon, F
- Solovieva, E
- Starič, M
- Sumihama, M
- Sumisawa, K
- Sumiyoshi, T
- Takizawa, M
- Tamponi, U
- Tanida, K
- Tenchini, F
- Trabelsi, K
- Uchida, M
- Unno, Y
- Uno, S
- van Tonder, R
- Varner, G
- Varvell, K.E
- Waheed, E
- Wang, C.H
- Wang, E
- Wang, P
- Watanabe, M
- Watanuki, S
- Werbycka, O
- Won, E
- Yabsley, B.D
- Yan, W
- Yang, S.B
- Ye, H
- Yin, J.H
- Zhang, Z.P
- Zhilich, V
- Zhukova, V
DOIAbstract
International audienceThis paper presents a search for the rare flavor-changing neutral current process B0→K*0τ+τ- using data taken with the Belle detector at the KEKB asymmetric energy e+e- collider. The analysis is based on the entire ϒ(4S) resonance data sample of 711 fb-1, corresponding to 772×106BB¯ pairs. In our search we fully reconstruct the companion B meson produced in the process e+e-→ϒ(4S)→BB¯ from its hadronic decay modes, and look for the decay B0→K*0τ+τ- in the rest of the event. No evidence for a signal is found. We report an upper limit on the branching fraction B(B0→K*0τ+τ-)<3.1×10-3 at 90% confidence level. This is the first direct limit on B(B0→K*0τ+τ-)
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